Thank you all very much. I hadn't patched the scsi.device. 
Sorry to borrow your thread, but can anyone tell me why the patched scsi.device is much slower than the standard device? This is not terribly important to me as I use FastATA on my main A1200, but in the past when I've played around with the patched scsi.device on my spare A1200 I found it to be slow.
Has anyone else came across this?
